




'''simple docstring'''



import html

from ...feature_extraction_utils import BatchFeature, FeatureExtractionMixin
from ...utils import is_bsa_available, logging, requires_backends


if is_bsa_available():
     import bsa
     from bsa import BeautifulSoup


UpperCAmelCase_							:	int	     =		logging.get_logger(__name__)





class      lowerCAmelCase (			__lowerCAmelCase):


       def __init__( self     ,	**__SCREAMING_SNAKE_CASE	)   ->	int:



            '''simple docstring'''




            requires_backends(self     ,	['''bs4''']	)
            super().__init__(**__SCREAMING_SNAKE_CASE	)


       def    lowerCAmelCase   ( self     ,	__SCREAMING_SNAKE_CASE	)   ->	str:



            '''simple docstring'''




            __snake_case            =	[]
            __snake_case            =	[]
            __snake_case            =	element if element.name else element.parent
            for parent in child.parents:  # type: bs4.element.Tag
                 __snake_case            =	parent.find_all(child.name     ,	recursive=__SCREAMING_SNAKE_CASE	)
                 xpath_tags.append(child.name	)
                 xpath_subscripts.append(
                     0 if 1 == len(__SCREAMING_SNAKE_CASE	) else next(i for i, s in enumerate(__SCREAMING_SNAKE_CASE     ,	1	) if s is child	)	)
                 __snake_case            =	parent
            xpath_tags.reverse()
            xpath_subscripts.reverse()
            return xpath_tags, xpath_subscripts


       def    lowerCAmelCase   ( self     ,	__SCREAMING_SNAKE_CASE	)   ->	Tuple:



            '''simple docstring'''




            __snake_case            =	BeautifulSoup(__SCREAMING_SNAKE_CASE     ,	'''html.parser'''	)

            __snake_case            =	[]
            __snake_case            =	[]
            __snake_case            =	[]

            for element in html_code.descendants:
                 if type(__SCREAMING_SNAKE_CASE	) == bsa.element.NavigableString:
                      if type(element.parent	) != bsa.element.Tag:
                           continue

                      __snake_case            =	html.unescape(__SCREAMING_SNAKE_CASE	).strip()
                      if not text_in_this_tag:
                           continue

                      all_doc_strings.append(__SCREAMING_SNAKE_CASE	)

                      __snake_case       ,     __snake_case            =	self.xpath_soup(__SCREAMING_SNAKE_CASE	)
                      stringaxtag_seq.append(__SCREAMING_SNAKE_CASE	)
                      stringaxsubs_seq.append(__SCREAMING_SNAKE_CASE	)

            if len(__SCREAMING_SNAKE_CASE	) != len(__SCREAMING_SNAKE_CASE	):
                 raise ValueError('''Number of doc strings and xtags does not correspond'''	)
            if len(__SCREAMING_SNAKE_CASE	) != len(__SCREAMING_SNAKE_CASE	):
                 raise ValueError('''Number of doc strings and xsubs does not correspond'''	)

            return all_doc_strings, stringaxtag_seq, stringaxsubs_seq


       def    lowerCAmelCase   ( self     ,	__SCREAMING_SNAKE_CASE     ,	__SCREAMING_SNAKE_CASE	)   ->	str:



            '''simple docstring'''




            __snake_case            =	''''''
            for tagname, subs in zip(__SCREAMING_SNAKE_CASE     ,	__SCREAMING_SNAKE_CASE	):
                 xpath += F'''/{tagname}'''
                 if subs != 0:
                      xpath += F'''[{subs}]'''
            return xpath




       def __call__( self     ,	__SCREAMING_SNAKE_CASE	)   ->	BatchFeature:



            '''simple docstring'''




            __snake_case            =	False

            # Check that strings has a valid type
            if isinstance(__SCREAMING_SNAKE_CASE     ,	__SCREAMING_SNAKE_CASE	):
                 __snake_case            =	True
            elif isinstance(__SCREAMING_SNAKE_CASE     ,	(list, tuple)	):
                 if len(__SCREAMING_SNAKE_CASE	) == 0 or isinstance(html_strings[0]     ,	__SCREAMING_SNAKE_CASE	):
                      __snake_case            =	True

            if not valid_strings:
                 raise ValueError(
                     '''HTML strings must of type `str`, `List[str]` (batch of examples), '''
                     F'''but is of type {type(__SCREAMING_SNAKE_CASE	)}.'''	)

            __snake_case            =	bool(isinstance(__SCREAMING_SNAKE_CASE     ,	(list, tuple)	) and (isinstance(html_strings[0]     ,	__SCREAMING_SNAKE_CASE	))	)

            if not is_batched:
                 __snake_case            =	[html_strings]

            # Get nodes + xpaths
            __snake_case            =	[]
            __snake_case            =	[]
            for html_string in html_strings:
                 __snake_case       ,     __snake_case       ,     __snake_case            =	self.get_three_from_single(__SCREAMING_SNAKE_CASE	)
                 nodes.append(__SCREAMING_SNAKE_CASE	)
                 __snake_case            =	[]
                 for node, tag_list, sub_list in zip(__SCREAMING_SNAKE_CASE     ,	__SCREAMING_SNAKE_CASE     ,	__SCREAMING_SNAKE_CASE	):
                      __snake_case            =	self.construct_xpath(__SCREAMING_SNAKE_CASE     ,	__SCREAMING_SNAKE_CASE	)
                      xpath_strings.append(__SCREAMING_SNAKE_CASE	)
                 xpaths.append(__SCREAMING_SNAKE_CASE	)

            # return as Dict
            __snake_case            =	{'''nodes''': nodes, '''xpaths''': xpaths}
            __snake_case            =	BatchFeature(data=__SCREAMING_SNAKE_CASE     ,	tensor_type=__SCREAMING_SNAKE_CASE	)

            return encoded_inputs














"""simple docstring"""





_SCREAMING_SNAKE_CASE   :							Optional[int]          =		8.314_4598







def 	lowerCamelCase__			(				_lowerCamelCase			:						float						,							_lowerCamelCase			:						float					) ->							float:
  if temperature < 0:
    raise Exception('Temperature cannot be less than 0 K'					)
  if molar_mass <= 0:
    raise Exception('Molar mass cannot be less than or equal to 0 kg/mol'					)
  else:
    return (3 * UNIVERSAL_GAS_CONSTANT * temperature / molar_mass) ** 0.5


if __name__ == "__main__":
  import doctest

  # run doctest
  doctest.testmod()

  # example
  _SCREAMING_SNAKE_CASE   :							List[Any]          =		300
  _SCREAMING_SNAKE_CASE   :							Dict          =		28
  _SCREAMING_SNAKE_CASE   :							List[str]          =		rms_speed_of_molecule(temperature, molar_mass)
  print(F'''Vrms of Nitrogen gas at 300 K is {vrms} m/s''')




